Automatic train-stopping apparatus.



J. L. BUYER. AUTOMATIC TRAIN STOPPING APPARATUS.

APPLICATION FILED JAN.14,1914,

Patented June 30, 1914.

4 SHEETS SHEET l.

WNW tame ll 4m. g A

4 SHBBTS-SHBET 2 Iateuted June 30, 1914,

J. L. BUYER. Anna/[M10 TRAIN s'wmm APPARATUS.

APBLIUAJION l'fLEJ; J 53.

J. L. BUYER. v AUTOMATIC TRAIN STOPPING APPARATUS.

AIPLIOATIOI TILED JAN. 14, 1914. 1 ,102, 1 32.

Patented June 30,1914,

4 SHEETS-$8331 3.

//////////////////A'///////In J. L. BOYER. AUTOMATIC TRAIN STOPPING APPARATUS.

APPLIOATION FILED JAN.14, 1914. I

- Patented June 30, 1914.

4 SHBBTSSHEET 4.

ni-sm. of the same. Fig. 5 is a sectional VLlBW on the line'5 5 of Fig. 3. Fig. 6 1s a trans BED-STATES P NT.

.mmns L. BUYER, 0F.Jonnsirowni rnnnsynvamnl' e irom' l Am-steam A mms..

I Sii a 1 n i s t l e Patented J u-Iie 30; 1914.

Application filed January 14, 1914. manna/812323.

* To all whoma infdyfc-omern Be -kn'own thatl; JAMEsL. Born, a

Tr'ain Sto ping Apparatus, 0t which the 'fOllOWlIlg lS a specification? g This intention relates to improvements in "automatic'traiiistopping apparatus and has particular application to an electrically controlled apparatus of this type.

In'carryingout"the"present inyent'ion, it is w my purpose to provide an apparatus of the" class described 1 ithi'ch will be found espee ially useful; in conjunction with" the block signal systenjtand whe'reby the propelling "power of the motorear' vill'be cut off and" the brakes appliedautomatically in the event of such-car passing a danger signal and wherein the car carried mechanism will the railway; i

' Itis also my purpose to providean automatic train' stopping apparatus which will operate efficiently and effectively under all Weather conditions and which may be installedand maintained at a minimum exense. [11,. V .I

With the aboi'e and other ob eCts n View,

the invention consists in the construction. combination and arrangement of parts hereinafte'r set forth andfalling within thefi r a L be". closed .andthe. partiaLcircuit composed scope-of the claims.

In the accompanying drawings Figure 1 is a 'diagrammatic'vieiv of at car carried view of apor'tionof car carried mecha- Fig. 4 is an'enlarged side elevation verse sectional-view through the track'way -and.the motorv car thereon.- Fig. .7. is a view in side elevation of a; car. controlled sw tch,

1, 1 designate paralletlines of rails form- 4 ing the trackway. -ln the present instance, thelines of rails of the trackway are divided into section's or blocks'of any suitable length by means of insulation 2. Located "at the e "entrance" to each block is semaphore 3 cm- "citizen offtl e" Unitfed"States, residing at Johnstown, thejcounty of Cambria' and State Pennsylvania, have invented new' and useful ,glinproitements in .Automatic bodying'a signalfblade 4fiyorking in the upper quadrant andiindicating'f danger ythen horizontal and clear when yettical; and a motor-"5 connected'up' with the'bladej' t' and holdingthe-flatter in Itheclarfposi-w block are'cont'act rails 10, 10 disposedbetween the lines ofrailsof the 'trackway and-leading from one end- 0f one'of-said' rails is aconductor ll connected with one side of a battery 12. while fromthe remain mg contact rail leadsa c0nductor 13-connected to the pivot point' ofan armature 14 under the influence of the-track relay 8 of. the respective block-and normally held in open position. In the path of movement of the armature-l4 is a contact;15 connected with the othersideof the batter-3 12 by way. of a wire 16. By means of thiseonstruction, it wilt-be seenthat as long as the track relayS is energized. the motor-. circuit 61Will of the battery 12.,xyire I6; conductors '13,. and contact rails 10.1O open.- On the-other I hand, when a trainienters the block. the bat- .tery '9 is short circuited and the relay 8 .de-

energized whereby the relayarmature and I the armature 1t gravitate to lowerlposition.

thereby opening the 1notor--circuit. .6 and closing the part alcircuit-including the. contact rails 10. 10. Upon thebreaking ofthe motor circuit, the signal blade gravitates to danger position. 7 Depending fromeach motor car or locomotive adjacent to-the forward end thereof are brackets 17. 1'7 spaced apart transyersely of the car and each provided;with tyertically a-li-ning bearings 18, 18.; itling-thee; it iy.

, cally'alining be'aringsl-S, l8 eggh gtirapliet M is slidably mounted a rod l9' ha g gggfcollai' 2O surrounding the sa ne, ,and.f t&her:etp adjacent totihelower bear ng, et eng gcling the i'otlyisagcoiled.egtpansion snnqg gl having one end bearing against the collar and the opposite end in engagement with the upper bearing 18, such spring acting to maintain the rod against upward movement. Suitably secured to the lower ends of the rods 19, 19 are contact shoes22, 22 adapted to ride upon the contact rails 10, 10 in the travel of the car, along the trackway and in orderto 'insure good contact between the contact rails and the shoes, the opposite ends of the rails are inclined downwardly so that frictional contact between the shoes and the rails will be gradually increased under the action of the springs 21;

Mounted upon the motor car or locomotive is a controlling relay 23 comprising, in the present instance, a casing 24, an electromagnet 25 secured to the bottom wall of the easing and an armature 26 ivotally mounted upon a bracket within it e casing 24 and having one end thereof disposed within the influence of the pole of the magnet 25 and the opposite end downt'urned to form a detent 27.- The terminals of the winding of the agnet 25 are connected with the upper endzdf the rods 19 by way of wires 28 so tha should the car attempt to enter a block against the set danger signal, the winding of the magnet 25 will become energized owing to the shoes 22, 22griding into engagement wi h the-contactj'rails 10, 10 in circuit with HE; battery 12, current flowing from one side the batteryfth'rough the wire 11, the re "spective contact rail. 10, the shoe 22, the respective wire ,28, the-winding of the magnet the remaining wire 28, shoe 22, contact I 10, the conductor 13, armature 14, con- ;15 and back to the other side ,of the batte jby way of the wire 16.

- n electric motor 29 is mounted upon the boiler of the engine in advance of the steam dome and is connected in an electric circuit 30 including a suitable source of energy with a battery 31 and a double pole switch 32. The switch 32 is disposed within the casing 23 of the controlling relay and the blades thereof are normally held open by the dog 27 on thearmature 26, while a coiled contractilespring '33 has one end connected to such blades and -the opposite end fastened to the adjacent "end wall of the casing and acts to swing the} blade to closed position succeeding therel'ease of the same by the dog 27 incident- 31:0 the swinging of the armature upon the energization o the magnet 25. In the present instance, a butterfly valve 34 is located inthe steam main between the throttle valve and the drive cylinders of the engine and the stem. of such valve is connected with a vertical shaft 35 extending through the top of the boiler and terminating adjacent to one end of the armature shaft of the motor 29. Loosely surrounding the vertical shaft 35 is. a bevel gear 36 and meshing with such gear is a pinion 37 keyed 'to the adjacent end of the armature shaft of the motor 29, while fixed to the under surface of the bevel'gear 36 is a disk 38 having a defpression-39'formed in the periphery thereo This --"'d'pression 39 has the lower' wall thereof inclined and gradually merging into the periphery of the disk 38. Fixed t0 the shaft 35 a 'djacent to the upper end thereof is a disk 40 formed with an arcuate shaped slot 41 adjacent to the periphery thereof and within such slot works a pin- 42 carried by the bevel gear 36 and projecting upwardl from the upper surface thereof, In t is embodiment of, my invention, the disk 40 is provided with a crank pin 43 connected through the medium of a link 44 with the handle 45 of the engin'eers brake valve 46 so that when the disk 40 revolves under the action of the shaft 35, the engineers brake valve will be manipulated to bleed the brake pipe or train 'line air pi e.

Ad]acent to the shaft 35 is a latching device comprising a casing 47 in which is slidably mounted a latching pin 48 having one end normally lying within a recess 49 formed in the periphery of the disk 40, a coiled expansion spring 50 encircling the latching pin 48 within the casing 47 and having one end abutting a collar 51 on the latching pin and the opposite end in engagement with the opposite end wall of the casing. Depending from the latching pin 48 is an arm 53 carrying a right angularly extending pin 54 disposed within the recess 39 in the periphery of the disk 38.

In practice, when the motor 39 is energize-d as previously described, owing to the train orecar passing a danger signal, the bevel pinion 37 meshing with the gear 36 revolves the latter and in the initial rotation of the disk 38 under the action of the bevel gear 36 the inclined wall of the recess 39 actuates the pin 54 with the efi'ect to retract the latching pin 48'from the recess or notch 49 in the disk 40. Immediately succeeding the release of the disk 40, the pin 42 engages theend Wall of the slot 41 and so revolves thedisk 40 thereby rotating the shaft 35 to close the butterfly valve 34 and cut oil the flow of steam from the boiler to the drive cylinders of the locomotive. In the rotation of the disk 40, the engineers brake valve 46 is manipulated to bleed the brake pipe and thereby effect an application of the brakes to the wheels.

In the present instance, normally vclosed spring switches 55 are connected in the conductors 11 and 13 and connected to such switches is an actuating bar 56 arranged upon the outer side of one line of rails 1 immediately beyond the entrance to the respective block. This bar 56 is normally held in elevated position above the tread of a the adjacent line of rails by means of coiled expansion springs 57 disposed within suitable casings, such bar being of a length equal to the di--tance between the trncks on the cars. By means of this construction, it will be seen that after the motor car at the head of a train has entered the block and set the danger signal against a following train or car, the flanges of the wheels of the first train will ride into engagement with the actuating bar 56 and so actuate the switches 57 to open position thereby breakin: the electrical continuity of the conduc tors 11 and 13 so that the car carried stopping mechanism on a pusher engine, that is, to say, an engine coupled to the rear of the train, will remain inactive when passing the danger -IQHZ1L In 9 of the drawings, I have illustrated a form of relay for controlling the motor circuit. ofthe driving motors of an electric motor car, such relay comprising a pair of magnets t 5S spaced apart and connected in series with each other and the shoes depending from the car, and an armature disposed within the influence of the poles of the magnets and connected with a horizontal rod extending between the magnets 58, 5S and having one end thereof .provided with a contact 61 normally engaged by a contact 62 on one end of an arm 63 pivoted as at til. Encircling the rod 60 is a coiled expansion spring 65 acting to hold the contact (31 normally in engagement with the contact (3:2. The main feed wire of'the motor circuit of the car is broken and one of the terminals at the break therein connected with the pivots 6% of the arm 63 and the other terminal connected with the contactGl on the rod 60. Thus, when the magnets 58 are energized the armature 59 is actuated to disengage the contact 61 from the contact 12 thereby permitting the arm (33 to gravitate to .lowered position so'that the motor circuit is broken.

'hile I have herein shown and described one preferred form of my invention by Way of illustration. I wish it to be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and v: riation may be made within the scope of the claims without departing from the spirit of the invention.

I claim:

1.. In train stopping apparatus, car carried mechanism comprising a motor, means for cutting off the propelling power of the car, a shaft connected to said means. a disk fixed to saidshaft, a gear wheel loosely surrounding said shaft, driving connections between said gear wheel and motor, motor controlled means for effecting a rigid connection between said gear wheel and disk whereby said shaft will be rotated in the operation of the motor, a latching device holding said disk normally against movement. and means for releasing said latching de vice.

2. In train stopping apparatus, car carried mechanism comprising a motor, means for cutting off the propelling power of'the car. a shaft connected to said means a disk fixed to said shaft, a gear wheel loosely surrounding said shaft, driving connections be tween said gear wheel and motor, motor controlled means for effecting a rigid connection between said gear wheel and disk whereby said shaft will be rotated in the operation of the motor, a latching device holding said disk normally against movement, and motor controlled means for releasing said latching device.

3. In train stopping apparatus, car carried mechanism comprising a motor, means for cutting off the propelling power of the car, a shaft connected to said means, a disk fixed on said shaft, a gear loosely surrounding said shaft, driving connections between said gear and motor, means for operating said motor. means for establishing a rigid connection between said ear and disk succeeding the initial operation of the motor, a latching device holding said disk normally against movement. and means operable from said motor in the initial operation thereof to release said latching device.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES L. BOYER. "Witnesses:

- GEO. W. Rononns,

\VILLIAM T. EVANS 

